Papers from the Eranos Yearbooks, Eranos 4: Spiritual DisciplinesEssays by Rudolf Bernoulli, Martin Buber, C. M. von Cammerloher, T. W. Danzel, Friedrich Heiler, C. G. Jung, C. Ker nyi, John Layard, Fritz Meier, Max Pulver, Erwin Rousselle, and Heinrich Zimmer. With an introduction by Mircea Eliade. Originally published in 1960. The Princeton Legacy Library uses the latest print on demand technology to again make available previously out of print books from the distinguished backlist of Princeton University Press.